Rock-crusher.



No. 773,107. v I I PATENTED OCT- 25, 1904.

' C. WALLACE.

ROCKV CRUSHER.

APPLICATION FILED NOVQZZ, 1902.

' N0 MODEL.

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.\\\\\\\\\\\\\\\\ 1 @Mmmm l bmi /f/d//ace N. 773,107. PATBNTED 00T. 25, 1904.

l C. WALLACE.

ROCK CRUSHER.

APPLIGATION FILED Novgzz, 1902.

No MODEL. zsHBBTs-SHEET 2.

f I UNITED v STATES Patented October 25, 1904.

CHARLES WALLACE, OF DENVER, COLORADO.

ROCK-CRUSHER.

SPECIFICATION forming part of Letters Patent No. 773,107, dated October 25, 1904-.. Application filed November 22, 1902i Serial No. 132,477. (No model.)

T0 all whom imag/concern:

Be it known that I, CHARLES WALLACE, a citizen-of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Rock-Crushers;

and I do declare the following to be a full,f.

clear, and exact description of the invention, such as will enable others skilled in the art to which it' appertains to make and use the same, reference being had to the accompanying drawings, andto the characters of reference marked thereon, which form a part of this specicatiom My invention relates to improvements `in rock-Crushers; and it consists of thefeatures, arrangements, and combinations yhereinafter described and claimed, allof which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof. i

In the drawings, Figure 1 is avertical section of the machine taken on the line 1 1, Eig.`

3. Fig. 2 is a horizontal section taken on the line 2 2, Fig. 1. Fig. 3 is a section taken on the line 3 3, Fig. 1. l Y

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate eachio'f twobottom beams located at the ends of the machine and extending transversely of the framework mounted thereon. This framework is composed of two side beams 6, secured to the bottom beams by bolts 7 The beams 6 are suitably separated to receive the lower portion of a vertically-moving lever-bar 8, to which is attached a crushing-jaw 9,*which'is held in place above by a wedge-shaped clamping-block 10, the latter being secured to the lever-bar by bolts 12. The lower extremity of the jaw 9 is provided with lugs 9, which pass between the metal plates of the lever-v bar 8. The latter is also provided with projections8d, having beveled upper faces to engage counterpart notches formed in the jaw 9 adjacent the lugs 9d. This construction cooperates withthe clamping-block 10 to hold the jaw securely in place. A bolt 9h passes through the lugs 91 of the jaw and further secures the said jaw tothe lever-bar.

-ing movement ris imparted to the bar. gaging the eccentric 12 of the shaft 12a is This bar Y is hung and swings -upon an eccentric-shaft 12, journaled in suitable bearings 14, mounted on the upper extremitiesof side frame-bars 15, there being two of these bars on each side of the lever-bar, each pair of bars 15 being connected at the top by bolts 16and separated below where they diverge inthe form of a letter 'A, their lower extremities having tenons which enter mortises-formed in the horizontal side frame-beams 6, as shown atla. To the lowerpart of each bar 15 is secured a metal angle-platel? ,the attachment being made by bolts-18. The lower extremity of this plate y is bentto form a horizontal part 17a, through which the bolt 7 passes. The upper extremity`of thel plate 17 is provided with an angleV portion 17C, to which is attached the lower `extremity of ametal strap19. The upper extremities of each pair of straps 19 are connected above the journal-box by a bolt 20. These straps 19 tie the journal-boxes down to the'frame from above. 13s.* of each journal-box passes between the upper extremities of a pair of side bars l5 and is secured to the said frame-bars by the bolt 16.V

As sho'wn in the drawings, the lever-bar 8 is composed of three metal plates 8a, separated by interposed wood pieces 8C. These parts are connected together by bolts 21. The upper extremity of the lever-bar engages the eccentric 12 of the shaft 12, whereby an oscillat- En.-

a two-part box, each member of which is designated by the numeral 4C. At each side of this'box is located an adjusting-plate 3, one of which is engaged by an adjustingbolt 2, whereby as the interior box becomes worn the wear may be taken up. The lower extremity of the lever-bar is provided on the The lower member side opposite the jaw 9 with a block 22,` which l enters the space between the metal plates 8*, (see Fig. 2,) the filling-pieces 8c be omitted from the lower part ofthe bar for this purpose. This block 22 is pivotal-ly connected with thejlever-bar by a bolt 23, and its front side bears against a pin 24, mounted on the lever. This pin is of suiiicient strength to re- Y sist ordinary pressure and do ordinary work.

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j If, however', some article harder than the rock, as a metal part, should accidentally pass between the crushing-jaws, this pin yields or breaks to prevent injury to or the breaking ofthe other parts. The block when the safetypin is broken is allowed a limited degree ot' movement before it engages the lever, this movement being considered sufcient to allow the jaws to yopen to allow any ordinary obstacle to pass. The block 22 is toothed on its rear side, or that farther to the right in Figs. l and 2, to engage a toothed abutment 23', which is cam or eccentric shaped and adjustable to vary the space between the crushingjaws according to the degree ot' tineness required in crushing the material. mental abutment is mounted on a large bolt 25 and is normally movable on the bolt. By loosening the tension-rod 33 the segment may be turned on the bolt to adjust the lever-bar and regulate the space between the crushingjaws as desired.

Between the crushing-jaw 9 and the met-al plates 8iL of the lever-bar is a wood iilling 26. The lever-bar extends below its fulcrum or bearing-point on the segmental abutment, this extension being the short arm of the lever, the entire length of the lever above the fulcrum-point constituting the long arm. The upper part of the jaw 9 is toothed or horizontally corrugated, as shown at 9, and this toothed portion is inclined rearwardly and downwardly from its upper extremity to a point A, from which it is forwardly inclined, as shown at 9c. This face 9C of the jaw extends below the fulcrum on the lever-bar and cooperates with an oppositely-located or opposing face 27a of the stationary jaw 27 to perform the inal crushing function. The upper portion of the jaw 27 is rearwardly inclined and longitudinally corrugated, forming a wedge-shaped feed-space between the movable and stationary jaws, the said space being widest at the top and bounded at the sides by cheek-plates 40.

Mounted on each side of the lever-bar and made fast thereto is a lug 30, having a vertical opening to receive a pin 3l, secured to the frame on its upper extremity. The lower extremity of this pin is provided with a head` and between this head and the lug is located a coil-spring B2 to give the lever-bar a yielding support during its downward movement. The block 22 has a depending projection 22, through which a tension-rod 33 passes. This rod also passes through one ot' the bottom beams 5 and is secured in place by a nut 34. Between this nut and the beam 5 is located a yielding device 35, which, a's shown in the drawings, is a piece of rubber. It is evident, however, that a spring or other cushion device may be employed. This tension rod holds the toothed block 22 in operative relation with the toothed abutment.

The stationary jaw 27 is secured to a block This seg- 28, mounted between the beams 6 and held in place by heavy bolts 29. These bolts protrude through the beams 6 and their extremities are connected with the extremities of the bolt 25 by exteriorly-located U-shaped bars 35, one on each side of the machine. The extremities ol each of these stationary bars are provided with eyes through which the extremities oi the bolts 29 pass, while the bend otl the bars engages the extremities ot' the bolt 25. By this construction the abutment and the stationary jaw or the opposing working parts of the machine are prevented from any spreading or separating action, making' an exceedingly strong, durable, and eiiicient crushing construction by the employment of a minimum amount ot material.

Frein the foregoing description the use and operation of the apparatus will be readily understood. The ore or rock to be crushed is fed into the wedge-shaped space between the jaws 9 and 27. The operating-shaft 12l is provided with a loose pulley 37 and two il ywheels 36, one of the iiy-whcels being that at the leit in Fig. 3, serving as a driving-pulley to be connected with a belt. (Not shown.) The eccentric-shaft being rotated the action ot' the eccentric moves the upper extremity of the lever-bar 8 backward, forward, and vertically. The shaft is rotated in the direction indicated by the arrow in Fig. l. As the upper end of the bar moves toward the right (see Fig. l) the bar is also raised. This action forces the crushing-face 9" ol" the ljaw 9 toward the left at the same time that the bar is lifted, thus acting on the rock both by a crushing and a grinding movement. It will be observed that while the lower extremity of the jaw 9 is moving toward the stationary jaw 27 the portion ot' the jaw 9 above the lnl- Crum-point ol the abutment is moving in the opposite direction, thus opening or widening the feed-space between the jaws. On the other hand, this feed-space is closing` while the face 9c is moving` away from the opposingl face 27. Thus the roch gradually works downwardly Jfrom the feed-space into the narrow space between the crushing-'faces 9" and 27. 1t will be understood that the lever-bar acts with great force below the fulcrum-point of the abutment, since the long arm ol the lever or the distance above the vtulerum is many times the length of its short arm or the distance below the abutment.

Having thus described my invention, what I claim is l. The combination with a suitable frame and an operating-shaft, of a lever-har connected with the shaft, the latter being connected to impart to the bar an eccentric or crank action, a block pivotally attached to the lower extremity of the lever-bar, a brealrable safety-pin, against which said block bears, and an abutment engaging the block and `lorming a fulcrum for the lever.

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2. The combination with an eccentric-shaft and a suitable frame on which said,shaft is journaled, of a lever-bar hung on the eccentrio of the shaft, and provided with a crushing-jaw, a ooperating stationary jaw, an abutment forming a fulorum for the lever, and

yielding means giving a cushion support to the lever-bar during its downward movement, said means comprising bolts mounted on the frame and slidable in lugs fast on the leverbar on opposite sides, and coil-springs locatedV below the lugs and surrounding the bolts between the Said lugs and the bolt-heads.

3. In a rook-Crusher, the Combination with a suitable frame, of a vertically-disposed le- Ver-bar provided with a crushing-j aw, a crankshaft connected with the upper extremity of the bar for operating the same, an abutment forming the fulorum of the lever-bar, a bolt upon which the abutment is mounted and by which it is secured to the frame, a block pivotally mounted on the lower part of the bar,-

being engaged above the pivot by the abutv v ment, and a breakable safety-pin mounted on the lever-bar.

In testimony whereof I aHX my signature in lpresence of two witnesses.

CHARLES wALLAoE.

Witnesses:

A. J. OBRIEN, DENA NELSON. 

